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EP 4 426 964 A1

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(43) Date of publication: 11.09.2024 Bulletin 2024/37 (21) Application number: 23705059.6 (22) Date of filing: 17.01.2023

(51) International Patent Classification (IPC):  F23C 13/04(2006.01) F23D 14/62(2006.01) F23C 9/06(2006.01) F23L 15/04(2006.01) F23D 14/02(2006.01) F23D 14/66(2006.01) F23L 5/02(2006.01) F23L 17/00(2006.01) (52) Cooperative Patent Classification (CPC): F23C 13/04; F23D 14/02; F23D 14/62; F23D 14/66; F23C 9/06; F23C 2202/10; F23C 2900/9901; F23L 5/02; F23L 15/04; F23L 17/005; F23N 2233/04; F23N 2233/08 (86) International application number: PCT/IB2023/050383 (87) International publication number: WO 2023/139472 (27.07.2023 Gazette 2023/30)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 20.01.2022 IT 202200000950 (71) Applicant: Giacomini S.p.A. 28017 San Maurizio d'Opaglio (NO) (IT)	(72) Inventors: VALENTI, Gianluca 20133 MILANO (IT) GROPPI, Gianpiero 20133 MILANO (IT) DONAZZI, Alessandro 20133 MILANO (IT) RAVIDA', Antonino 20133 MILANO (IT) BATTISTELLA, Francesco 20133 MILANO (IT) MOLINA, Samuele 28017 San Maurizio d'Opaglio (NOVARA) (IT) (74) Representative: Praxi Intellectual Property Milano  Via Mario Pagano, 69/A 20145 Milano 20145 Milano (IT)